Since you are trading manually - if your trading judgement had not been impaired the best thing to do would be to continue as is.
There are several issues with reducing size. Sure, it's natural because you start to think in terms of capital preservation. But it also reinforces the feeling of there being a long road ahead to get back to your high water mark. If you aren't careful, that will affect your judgement.
Your biggest asset manually trading is your intuition. A lot of effort needs to go into protecting that and isolating it from all the emotions that get in the way. Don't dwell on drawdowns, don't dwell on win/ loss rates. Trade value rather than price. As you get better at this your drawdowns will disappear and 2-3 consecutive loosing days should become rare. Maybe 3-4 times a year. This is also the problem I have when using charts - they tend to impair your intuition and make you see patterns that have no meaning.
Maybe you should find / socialize with manual traders who work for established, profitable companies. It's hard to get a sense of sense of what is possible and what is standard when / if you are trying to do it all solo.
I tried trading without charts by just looking at the bid/ask and seeing which way was the path of least resistance but I was trading 50X leverage to get a decent return on 5-10 pip moves. It was real edge of the seat stuff, I made money but any quick adverse move and I would have been like a deer caught in the headlights.
The nearest trading firm is about 200 miles from me and I don't know any other traders.